Open die upsetting machine



March 23, 1937. R. L. WILCOX OPEN DIE UPSETTING MACHINE 4 Sheets-Sheet 1 Filed Oct. 19, 1932 kw QW INVENTOR. RICHARD LESTER W/LCOX March 1937- R. WILCOX OPEN DIE UPSETTING MACHINE 4 Sheefs-Sheet 2 Filed Oct. 19, 1952 INVENTOR- RICHARD L155 TER W/LCOX BY l 1L ATT RNEY. J

March 23, 1937.

R. L. WILCOX OPEN DIE UPSETTING MACHINE Filed Oct. 19, 1932 4 Sheets-Sheet 3 A 'ITORNE Y March. 23,. 1937. R. 1.. WILCOX OPEN DIE UPSETTING MACHINE Filed Oct. 19, 1952 4 Sheets-Sheet 4 I N V EN TOR. R/CHARD LESTER W/LCOX A TTORNEY,

Raw

Patented Mar. 23, 1 937 uru'rlzn STATES PATENT OFFICE 2,074,619 ornn nm UPSETTING momma Richard Lester Wilcox, Waterbury, Com, as-

. S gnor to The Waterbury Farrel Foundry and Machine Company, Waterbury, Com, a corporation of Connecticut Application October 19, 1932, Serial No. 638,853 23 Claims. (cue-.12)

and to cut off from a rod length or the like a.

10 portion thereof and automatically carry such portio n, now a blank, successively from one set of dies to the next succeeding set. In the carry movement the blanks travel with a portion thereof between the dies.

15 The above, and other advantageous results, which will appear-from the following description and the drawings forming part of this application, are accomplished in this invention.

To these and other ends, this invention con- 20 sists of the open die upsetting'machine, having certain details of construction and combinations of parts, as will be hereinafter described, and more particularly pointed out in the claims.

In the drawings, which illustrate one form of the embodiment of this invention, .and wherein like characters of reference'indicate like parts in the several figures;

Figure 1 is a fragmentary portion of an upsetting machine looking toward the face of the 30 dies, the parts in section being taken generally upon line l-l of Figure 2;

Figure 2 is a plan view of that portion of the machine adjacent to the punch and dies;

Figure 3 is a view similar to that shown in Fig- I 35 ure 1 with the dies and the transfer mechanism in a different relative position, the transfer mechanism being now in engagement with the several blanks; I V

Figure 4 is a plan view of the upper set of dies 40 and adjacent mechanism, the parts in section, other than the dies, being taken generally upon line 4-4 of Figure 3;

Figure 5 is a fragmentary side elevation of the machine, the parts in section being taken generally upon line 55 of Figure 1; andv Figure 6 is a diagrammatic view illustrating the path of movement of each of the sets of transfer 1 fingers. I I

In thepresent invention there are a plurality 50 of pairs ofdies so arranged that a blank is held in each pair of dies, .shown herein as four in number. The blanks in each of these pairs of dies, after being subjected to a pressure operation, are only ejected therefrom a distance suflicient 55 to enable the transfer fingers to grasp the same adjacent to the upset portion. The fingers, in front of and adjacent to the face of. the dies, now move toward the blanks, and snap over and hold the same rigid, further movement of the fingers stripping the blanks from the stationary dies and releasing them from the dies between the opposing faces thereof, and while so positionedtravel 'therebetween to the next succeeding stations.

In the embodiment of the invention disclosed herein, Ill designates the body of the machine,

Within a pocket l4 in'the body member is a movable die holder I5, which rides upon a suitable.

liner plate It, and secured therein by a clamp I! or the like, are a plurality of dies l8. These dies are of the conventional form, having longitudinal recesses I9 in the side walls thereof, the size and shape of which depend upon the size and shape of the rod and the upset portion of the blank at the station where the dies are located.

Fixed in the pocket It is a stationary die holder 38, in which is mounted a plurality of dies 39, corresponding in number and structure with the dies l 8.

A single die or a number less than as herein disclosed may be substituted for those shown within this invention. While it, is preferable .that the die holder 38 should bestationary, if

desired, it may be made movable like the die holder l5.

Journaled in the body member ll), or suitable parts associated therewith, is a shaft 20 that is driven by a spur gear 2|, which is actuatedv by any convenient power source, and upon which is a cam 22. Y

e A rock lever 35 has two parts which are severally designated 24 and 25 and both journaled on a stationary stud 23.' The former of these parts carries a cam roll 26, which rides on the face of the cam 22 and the other part carries a breaker pin 21, which abuts against a breaker plate 28 in the lever part 24. The/leverparts are held by the screw 29 so as to make a unitary structure, substantially as shown in Figure 5, with the breaker pin 21 against the breaker plate 28.

Mounted to reciprocate within the body member Ill is a slide 30, connected by a link 36 with the rock lever part 25, and with which is associated a toggle mechanism 3] of a well known type.

Movable in the body I 9 at an angle to the slide 99 are the. two plungers 32, which at one end engage the toggle plate '33 and at the other end are each connected with the movable die holder I 5 by the pins 94..

The movement of the slide 39 actuates the toggle mechanism and through the plungers 32 the die holder I5 is moved toward and away from the fixed dies. In their inner position, the dies l9 and 39 are in contact witheach other.

A variation of the gripping pressure of the dies l9 and the position of the movable die holder I5 is obtained through the wedges 31 in a manner well known in the art.

Within the die holder 4| in rear of the top die I9 is a cut-off die 49. and concentric therewith is a quill 42, through which the rod 43 is fed by any one of many devices well known in the art, andnot shown herein. ,The position of the cut-off die relative to the upper die 99 is such that the opening in the cut-off die is not in register with the recess in the die 99, but somewhat nearer to the movable dies when in their out position, as shown in Figure 1. Stop means limit the inward movement of the rod 49, and comprises in part a rock member 44, mounted upon a stud 45in a fixed bracket 46.

The rock member 44 is actuated from a cam when in line therewith limits the extent of movement thereof.

Connected with the body member [9 is a. shaft 69 which is journaled in the parts Bland rotated through the gears 69 from the shaft 49. On this shaft are a plurality of knockout cams 69.

Projecting through a backing plate 6| and in 5 the same plane as the recesses in the three lower dies l9 and 99 are theknockout pins 62, which are moved in one direction by knockout rods 69. These knockout rods 69 are intermittently actuated in timed relation with other parts through the knockout levers 64, which are fulcrumed upon pins in a fixed part and carry the cam rolls 66 which ride and are held against the face of the cams 69 by the springs 61.

The numeral 69 designates the transfer slide,

which is mounted in guide blocks 69 pivotally connected with rock levers I9. A reciprocating movement is imparted to this slide by a cam ll onthe shaft 49 through a rock lever I2 fulcrumed on a fixed bracket 13, and having an ad- 'justabie connection with the slide by the turnbuckle 14. The rock levers 19 are fulcrumed on a fixed part 15 and are operatively connected with each other by an adjustable connection i6.-

These rock levers l5 derive motion from a cam 11 on the shaft 49, through a rock lever 19 fu1-' 70 associated therewith spring fingers 9| which are held in closed position against the sides of the blocks by studs 92 and springs 99 in a well known manner. These fingers are movable close to and across the face of the dies, traveling in a 76 P th substantially. as outlined in P 811179 6,

through the action of the slide 69 which recip- I rocates by the action of the cam H and moves laterally through the action of the rock lever 19. The parts are so actuated that during the lateral movement of the fingers there is no reciprocation of the slide 69.

In operation the rod is fed through the quill 42 and cut-off die 49 until it engages the movable stop which is then in line therewith. During this movement of the rod there is an open space between the dies, substantially as shown in Figure 1. The moving" dies now travel toward the fixed dies and the upper of the dies l9 cuts off that portion of the rod projecting beyond the face of the cut-01f die 49 and the feed stop swings to one side out of line with the rod. The cut-off portion of the rod, now a blank, is projected by the die l9,, with which it is in contact, into the recess in the upper of the dies 99. The movable dies are now moved away from the fixed dies slightly, thus releasing their grip on the cut-off portion of the rod, now a blank. This movement permits the blanks between each of the dies, to be partially ejected so that a portion of each of the. blanks is in front of the dies.

After the feed stop is out of alignment with the rod, the gate H moves forward, and the punches l3'engage and upset the blank in a well known manner, and then returns to its retracted position. The movable dies now release the grip of the dies upon the blanks and the knockout mechanism ejects the blank therefrom a sufilcient distance to permit the fingers 9| to engage the blank adjacent to the face of the dies and underneath the upset portion, without entirely freeing the blank from the dies thereby to dislodge the same. Theblank between the upper pair of dies is ejected by the next inward movement of the rod through the cut-off die, the inner end of which contacts with the rear end of the blank, this movement of the rod being timed to substantially correspond with that of the knockout mechanism at the other dies. This inward movement of the rod is only suificient to project the predetermined portion of the blank in front of the dies. The spring fingers then move laterally toward the blanks and snap over the same infront of the dies and thereby take a rigid hold thereof. The movable dies then move away from the fixed dies and'the fingers continue their lateral movement a sufiicient distance to free the blanks from the stationary and fixed dies. The transfer slide 69 is now reciprocated and the blanks are carried by the fingers through this open space and into register with the recesses of the next lower set of dies and the operations are again repeated, that is, the movable dies closing with the fixed dies and grasping the blanks therebetween. When the blanks are so held between the dies, the spring fingers are again moved laterally in a direction opposite to that above described and withdrawn from the blanks. The punches now move forward and engage the several blanks and perform their operations thereon, the first portion of the motion of the punch in contact with 1 the blanks being to move the same into the dies 2,074,679 the two-part rock lever 35. This will stop the movement of the slide 3lland the movable die holder l5.

The embodiment of the invention herein dis- .5 closes a vertical open space between the dies.

This is desirable because dirt and scale will drop by gravity through such open space and prevent an accumulation thereof. I do .not, however,

limit myself to such a structure, as the mechal nism will operate if the open space is in a horizontal plane and the dirt and scale, if any, released by other well known means.

While it will be apparent that the illustrated embodiment of the invention herein disclosed is well calculated to adequately fulfill the objects and advantages primarily stated, it is to be understood that the invention is susceptible to variation, modification and changes within the spirit and scope of the subjoined claims.

Havingdescribed the invention, what I claim is: r

1. In a machine of the character described; a gateyfixed open dies; a fixed cut-oil die; a die holder; open dies corresponding in number with the fixed dies secured in the die holder; means for imparting movement to the die holder, whereby the faces of the dies in the die holder are moved into contact with the faces of the fixed dies and away therefrom by an intermittent movement and during such into contact movement one of the dies in the die holder will cross the face of the cut-oil die and sever a portion of a rod projecting therethroughQsuch severed portion then becoming a blank; means for partially ejecting the blanks from the dies after the movable dies have released their pressure upon the blanks, and whereby a portion of the blanks will be in front of the dies; means operating be tween the gate and dies for grasping that portion of the blanks in front of the dies and successively transferring them from one set of fixed and movable dies to the next succeeding set of fixed and movable dies and then returning for another series of blanks, a portion of each of the blanks, during such transfer, travelling-in the open space between the said dies when separated; and punches carried by the gate co-operating with said dies for operations on said blanks when held in said dies.

2. In a machine of the character described; a gate; a plurality'of open dies held in a fixed position; a die holder; a plurality of dies corresponding in number with the aforesaid dies, se-

cured in the die holder; positive means for imparting a reciprocatory movement to the die holder, whereby the faces of the dies in the die holder are moved into and out of contact with the faces of the fixed dies, the out of contact movement being intermittent; punches movable with the gate and cooperating with said dies for upsetting blanks therein; means operating between the gate and dies for synchronously presenting blanks successively to each of the sets of fixed and movable dies, the blanks before presentation travelthe faces of the dies in the die holder are moved into and out of contact with the faces ofthe fixed dies, the out of contact movement being intermittent; punches movable with the gate and cooperating with said dies for upsetting blanks therein; means operating between the gate and dies for synchronously presenting blanks successively to each of the sets of fixed and movabletheir pressure upon the blanks.

4. In a machine of the character described; a reciprocating gate; a plurality of tools therein;

a plurality of open dies, a portion of which are fixed and a portion intermittently movable; means for causing the movable dies to travel toward and away from they fixed dies and in their away position leaving an open space therebetween; means operating between the gate and dies that grasp the blanks in front of the dies and transfer them from one die to another diewith a portion of the shank of the blanks in the said open space; and means for partially ejecting the blanks from the dies after the movable dies have released their pressure upon the blanks.

5. In a machine of the character described; a gate; a plurality of open dies; punches co-operating with said dies for upsetting the blanks therein; means operating between the gate. and die for carrying the blanks successively from one of said dies to another of said dies and between the opposing faces thereof, comprising in part a slide; a movable support for the slide that imparts lat- 'eral movement to the slide; a plurality of blank engaging fingers connected and movable with the slide, corresponding in number with the number of pairs of upsetting dies, said fingers being so arranged that they snap on and off that portion of the blanks that are in front of thedies; and means for partially ejecting the blanks from the dies after the movable dies have released their pressure upon the blanks whereby a portion of said blanks will be in front of said dies.

6. In a machine of the character described; a reciprocating gate; a plurality of open dies; punches movable with the gate and co-operating with said dies for upsetting the blanks therein; means operating between the gate and die for carrying the blanks synchronously and successively from one of said dies to another of said dies and between the opposing faces thereof, comprising in part spaced rock members; a movable support mounted on each rock member; a slide within said movable supports; means for imparting a reciprocatory movement to the slide within said movable supports, between movements of the, rock members; and a plurality of blank engaging fingers connected with the slide.

7. In a machine of the character described; a gate; a plurality of open dies; punches movable with the gate and co-operating with said dies for upsetting the blanks therein; and means for carrying the blanks synchronously and successively from one of said dies to another of said dies and between the opppsing faces thereof, comprising in part a reciprocatory slide, rock members,

blocks pivotally" mounted thereon, and in which the slide is movably mounted, and means for imparting movement to said rock members whereby a lateral movement is imparted to the slide.

8. In a machine of the character described; a gate; a plurality of open dies; punches co-operating with said dies for upsetting-the blanks therein; means in rear of the dies for partially eject- 5 ing the blanks after the movable dies have released their pressure upon the blanks; whereby a portion of said blanks will be in front of said dies; means operating between the gate and dies for synchronously gripping the blanks at each of said adies and carrying them successively from one die to another die andbetween the opposing faces thereof, and releasing its grip thereon at said latter die, comprising in part a reciprocating slide; a movable support for the slide; a plurality 5 of sets of blank engaging fingers connected and movable with the slide; and means for actuating said movable support, whereby said slide and fingers will move in a path at an angle to its reciprocatory path and at the approximate limits 20 thereof.

9. In a machine of the character described; a plurality of open dies; means for opening said dies by an intermittent movement; punches cooperating with said dies for upsetting the blanks 25 therein; means for carrying the blanks successively from one of said dies to another of said dies and between the opposing faces thereof, comprising in part a slide; an oscillating support for the slide; a plurality of sets of blank engaging 30 fingers connected and movable withthe slide;

and means for partially ejecting the blanks from the dies after the movable dies have released their pressure upon the blanks. I a 10. In a machine of the character described; a 35 gate; a plurality of pairs of open dies that are opened by an intermittent movementi, punches movable with the gate and co-operating with said dies for performing successive upsetting operations upon the same blank, which may be shorter 40 than the die; means, ,in part in rear of the dies, operating after the movable dies have released their pressure upon the blanks for partially ejecting the blanks from the dies after the upsetting operation in timed relation with the action of the 45 punches so that a portion of the blanks will be in front of the dies; and fingers which snap over and grip said blanks at that portion thereof projecting beyond the face of the dies and carry the blanks from their then position to a position in 0 register with the next set of dies and then snap off the blanks leaving a portion thereof projecting beyond the face of the dies, saidblanks being thereafter pushed between the dies by the punches until they engage said ejecting means. s

11. In a machine of the character described; a plurality of open dies arranged in the same plane; a cut-off die fixed adjacent to the dies at one end of said plurality of dies; means for opening' said dies by an intermittent movement; a reciprocating gate; punches mounted on the gate and co-operating withsaid dies for upsetting blanks therein; means for intermittently feeding a ,rod through said cut-off die and between the open dies adjacent thereto, said projecting portion be a portion thereof projecting beyond the faces of 76 the dies and a portion thereof between the opeach of the dies to the next succeeding die with posing faces of the dies and means, for partially ejecting the blanks from the dies other than at the cut-off die, after the movable dies have released their pressure upon the blanks so that a portion thereof will project beyond the face of. the dies.

12. In a machine of the character described; a plurality of open dies; means for opening said dies by an intermittent movement; punches cooperating with said dies for upsetting the blanks therein; means for carrying blanks that are no longer than the die successively from one of said dies to another of said dies and between the opposing faces thereof; and means for partially ejecting the blanks from the dies after the movable dies have released their pressure upon the blanks.

13. In a machine of the character described; a plurality of. open dies; means for opening said dies by 'an intermittent movement; means for transferring a blank that is no longer than the length of the die, from one of said dies to another of said dies between the opposing faces thereof; and means for partially ejecting the blanks from the dies after the movable dies have released their pressure upon the blanks.

14. In a machine of the character described; a plurality of open dies held in a fixed position; a die holder; a plurality of dies corresponding in number with the aforesaid dies, secured in the die holder; means for imparting a reciprocatory connected with the slide, and means for imparting an independent endw'ise movement to the slide in said support.

15. In a machine of the character described; a gate; a plurality of tools therein; open dies;

-means for opening said dies a limited distance and thereafter a greater distance; a fixed cutoff die, one of said open dies while being closed crossing the face of the cut-off die and severing a portion of a rod projecting therethrough, such severed portion then becoming a blank; means for partially ejecting the blanks from the dies when-the latter have been opened said limited distance. and whereby a portion of the blanks will be projected in front of the dies; means, operating between the gate and dies, for grasping that portion of the blanks in front of the dies and successively transferring them from one set of dies to another set of dies and then returning for another series of blanks, a portion of each, of the blanks during such transfer traveling in the open space between the said dies when separated more than said limited distance; and punches carried by the gate co-operating with said dies for operations on said blanks when held in said dies.

16. In a machine of the character described; a plurality of open dies; means for opening said dies by an intermittent movement with a dwell between each of said movements; punches cooperating with said dies for upsetting the blanks therein; means for partially ejecting the blanks after the movable dies have released their pressure upon the blanks, so that aportlon thereof will be in front of said dies; means for carrying the blanks successively from one of said dies to another of said dies and between the opposing faces thereof, comprising in part aslide; an oscillating support for the slide; and a plurality v of sets of blank engaging fingers connected and movable with the slide.'

17. In a machine of the character described; open dies; means for imparting plural movements thereto while opening said dies and whereby during said movements the open space between said dies is varied; means for presenting a workpiece to said dies; tools for performing operations upon said workpiece while held in said 7 dies; means for partially ejecting the blanks from the dies after the first of said plural movements;

and means for grasping the blank after such partial ejection and transferring it to a position to bereceived by another of said dies before the same are returned-to their closed position. r 18. In a machine of the character described; open dies; means for imparting plural movements thereto while opening said dies and whereby dur- 2 ing said movements the open space between said dies is varied, said plural movements being separated by a dwell of the dies; 'means for presenting a workpiece to said dies; tools for performing operations upon said workpiece while held in said dies; means for partially ejecting the blanks from the dies after the first of said plural movements; and means for grasping the blank after such partial ejection and transferring it to a position to be received by another of said dies before the same are returned to their'closed position. i

r 19. In a machine of the character described;-

ment to a blank between said dies operable at the conclusion of one of the plural movements of the dies; and means forgrasping the blank after such partial ejection and transferring it to a position to be received by another of said dies before the same are returned to their close position.

20. The combination with a pair, of dies havinga plurality of die stages, the die stages being disposed substantially in the same plane, one of said dies being movable between open and closed positions in a plane extending substantially per- Dendicular to the plane in which the die stages are disposed, means for'feeding ban or rod stock to said dies at a point remote from said first-- named plane, meanswhereby the stock is cut off to form work blanks, means to transfer said blanks from said remote point to one of said die stages, and transfer fingers adapted to'transfer 21. The combination with a pair of dies having a plurality of die stages, the die stages being disposed substantially in the same plane, one of said dies being movable between open and closed positions in a plane extending substantially perpendicular to the plane in which the die stages are disposed, means for feeding bar or rod stock to said dies at a point remote from said firstnamed plane, one of said diesbeing adapted to cut off a portion'of said stock to form a work blank when the die is moved from the open position to the closed position, means to transfer said blanks from said remote point to one of said die stages, and transfer fingers adapted to transfer said blanks from one of said die stages to another when the dies are in their open position.

22. The combination with relatively movable upsetting dies having a plurality of die stages, of feeding means adapted to feed bar or rod stock endwise to said dies, means whereby said stock is out off to form work pieces, transfer fingers adapted to grip a work piece when said -dies are in their closed position and to transfer said work piece from one to another of said die stages when said dies are in their open position, and an ejector adapted to eject said work piece from said last mentioned die stage simultaneously with the feeding of a new work piece to said dies.

23. The combination with a pair of' dies having a plurality of die stages, the die stages being disposed substantially h? the same plane, one of said dies being movable between open and closed po-. sitions in a plane extending substantially perpendicular to the plane in which the die stages are disposed, means for feeding bar or rod stock to said dies at a point remote from said first-named plane, meanswhereby the stock is cut oil to form work blanks, meansto transfer said blanks from said remote point-to one of said die stages, and

transfer fingers adapted to transfer said blanks Y fromone .of said die stages to another when the relative to each other in a plane generally perpendicular to the plane in which the die' stages are arranged in order to grip and release a blank tobe transferred, the fingers being movable in a plane generally parallel to the plane in which 7 the die stages are disposed to effect transfer of a blank from one die stage to another.

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